Patents by Inventor Il-Jeong Lee

Il-Jeong Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120292621
    Abstract: An organic light-emitting display apparatus may include: a planarization layer disposed on a substrate and covering a plurality of thin film transistors; pixel electrodes, each comprising a light emission portion and anon-light emission portion, the light emission portion being arranged on the planarization layer in a first grid pattern; via-holes, each connecting one thin film transistor and one pixel electrode through the planarization layer, and arranged in a second grid pattern offset from the first grid pattern; dummy via-holes spaced apart from the via-holes; a pixel-defining layer (PDL) disposed on the planarization layer and covering the via-holes, the dummy via-holes, and the non-light emission portion of the pixel electrodes; an organic layer disposed on the light emission portion and comprising an emissive layer; and an opposite electrode disposed on the organic layer.
    Type: Application
    Filed: September 21, 2011
    Publication date: November 22, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jong-Yun Kim, Il-Jeong Lee, Young-Dae Kim
  • Publication number: 20120228617
    Abstract: A method for manufacturing a flexible display device includes forming a heat generator on a carrier substrate, forming a flexible substrate on the heat generator, forming a thin film transistor on the flexible substrate, forming a light emitting element connected to the thin film transistor, and separating the flexible substrate from the heat generator by application of heat to the flexible substrate, the application of heat including generation of heat by the heat generator.
    Type: Application
    Filed: April 29, 2011
    Publication date: September 13, 2012
    Inventors: Moo-Soon Ko, Il-Jeong Lee, Choong-Youl Im, Jong-Hyuk Lee, Sung-Chul Kim
  • Publication number: 20120220061
    Abstract: An organic light emitting display (OLED) apparatus and a method of manufacturing the same, the OLED apparatus including: a substrate; an active layer formed on the substrate; a gate electrode insulated from the active layer; source and drain electrodes insulated from the gate electrode and electrically connected to the active layer; a pixel defining layer formed on the source and drain electrodes, having an aperture to expose one of the source and drain electrodes; an intermediate layer formed in the aperture and comprising an organic light emitting layer; and a facing electrode which is formed on the intermediate layer. One of the source and drain electrodes has an extension that operates as a pixel electrode. The aperture exposes the extended portion. The intermediate layer is formed on the extended portion.
    Type: Application
    Filed: May 4, 2012
    Publication date: August 30, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Do-Hyun KWON, Il-Jeong LEE, Choong-Youl IM, Dae-Hyun NO, Cheol-Ho YU
  • Patent number: 8227816
    Abstract: An organic light emitting display device (OLED) including: a substrate including a plurality of pixel units; first electrodes disposed in the pixel units; first subsidiary electrodes completely covering the top surfaces of corresponding ones of the first electrodes; first electrode protection units disposed on edges of the first electrodes on which the first subsidiary electrodes are not disposed; a pixel defining layer disposed on the substrate, having holes to expose the first electrodes; a light emission layer; and a second electrode disposed on the light emission layer. The light emission layer includes organic emission layers (EMLs) disposed on the first electrodes. The light emission layer may include subsidiary hole injection layers disposed on selected ones of the first electrodes, to vary a distance between the first electrodes and portions of the second electrode.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: July 24, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Sung-ho Kim, Ju-won Yoon, Su-Mi Lee, Il-Jeong Lee, Kwan-Hee Lee
  • Publication number: 20120168765
    Abstract: A flexible substrate for a display device comprises a polymer resin, an inorganic fiber material, and an antistatic agent, and has a surface resistivity of less than 1011?. A display device includes the flexible substrate.
    Type: Application
    Filed: July 15, 2011
    Publication date: July 5, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jong-Yun Kim, Il-Jeong Lee, Young-Dae Kim, Jong-Mo Yeo
  • Publication number: 20120161197
    Abstract: A flexible organic light-emitting display device has a thin film encapsulation structure. The flexible organic light-emitting display device can be manufactured by a method including sequentially stacking a glass substrate, a first flexible substrate in which conductive particles are integrally dispersed, a display unit comprising a thin film transistor (TFT) layer and a light-emitting layer, and a second flexible substrate. The glass substrate can then be separated from the first flexible substrate by emitting light.
    Type: Application
    Filed: September 23, 2011
    Publication date: June 28, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Choong-Youl Im, Il-Jeong Lee, Do-Hyun Kwon, Ju-Won Yoon, Sung-Eun Lee, Min-Woo Woo
  • Patent number: 8207662
    Abstract: An organic light emitting display (OLED) apparatus and a method of manufacturing the same, the OLED apparatus including: a substrate; an active layer formed on the substrate; a gate electrode insulated from the active layer; source and drain electrodes insulated from the gate electrode and electrically connected to the active layer; a pixel defining layer formed on the source and drain electrodes, having an aperture to expose one of the source and drain electrodes; an intermediate layer formed in the aperture and comprising an organic light emitting layer; and a facing electrode which is formed on the intermediate layer. One of the source and drain electrodes has an extension that operates as a pixel electrode. The aperture exposes the extended portion. The intermediate layer is formed on the extended portion.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: June 26, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Do-Hyun Kwon, Il-Jeong Lee, Choong-Youl Im, Dae-Hyun No, Cheol-Ho Yu
  • Publication number: 20120138933
    Abstract: A thin-film transistor includes a structure for protecting an active layer, and an organic light-emitting display device including the thin-film transistor.
    Type: Application
    Filed: May 2, 2011
    Publication date: June 7, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Do-Hyun KWON, Il-Jeong LEE, Choong-Youl IM, Ju-Won YOON
  • Publication number: 20120080681
    Abstract: A thin film transistor including: a substrate; an active layer formed over the substrate; a gate insulating layer formed over the active layer; a gate electrode formed over the gate insulating layer; an interlayer insulating layer formed over the gate electrode; and source and drain electrodes that contact the active layer via the interlayer insulating layer. The source and drain electrodes may have a structure including an aluminum (Al) layer, an aluminum-nickel alloy (AlNiX) layer, and an indium tin oxide (ITO) layer, which are sequentially stacked.
    Type: Application
    Filed: May 9, 2011
    Publication date: April 5, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Yoon Kim, IL-Jeong Lee, Choong-Youl Im, Do-Hyun Kwon
  • Patent number: 8106402
    Abstract: A flat panel display apparatus that can be manufactured with less patterning operations using a mask, and a method of manufacturing the same, the flat panel display apparatus including a substrate; an active layer of a thin film transistor (TFT); a first bottom electrode and a first top electrode of a capacitor; a first insulation layer formed on the substrate; a gate bottom electrode and a gate top electrode corresponding to the channel region; a second bottom electrode and a second top electrode of the capacitor; a pixel bottom electrode and a pixel top electrode; a second insulation layer formed on the gate electrode, the second electrode of the capacitor, and the pixel top electrode; and a source electrode and a drain electrode formed on the second insulation layer.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: January 31, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Mo Yeo, Dae-Hyun No, Do-Hyun Kwon, Choong-Youl Im, Soo-Beom Jo, Sung-Won Doh, Il-Jeong Lee, Cheol-Ho Yu
  • Publication number: 20110291091
    Abstract: In an organic light emitting display, a conductive layer is formed on the bottom surface of a substrate, and the conductive layer is used as a wiring line for supplying a power source, and as the electrode of a capacitor. Therefore, it is possible to easily secure the aperture ratio of a pixel, to easily solve the problem of IR drops by controlling the area or thickness of the conductive layer, and to easily secure the electrostatic capacity of the capacitor. In particular, in the case of a front surface light emitting structure, since a capacitor of a metal/insulating layer/metal (MIM) structure may be formed in a light emitting region, enough aperture ratio and electrostatic capacity may be secured. Therefore, a high resolution organic light emitting display may be easily realized, and enough aperture ratio and electrostatic capacity are secured so as to realize high picture quality.
    Type: Application
    Filed: March 29, 2011
    Publication date: December 1, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Yun Kim, Il-Jeong Lee, Choong-Youl Im
  • Publication number: 20110220898
    Abstract: An organic light emitting diode (OLED) display that includes a substrate, a thin film transistor, and a pixel electrode. The thin film transistor is formed on the substrate and includes a semiconductor layer, a gate electrode, a source electrode, and a drain electrode. The pixel electrode is electrically connected to the thin film transistor and is formed on the same layer as the source electrode and the drain electrode. The source electrode and the drain electrode include a first conductive layer, and the pixel electrode includes a first conductive layer and a second conductive layer stacked thereon.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 15, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Ju-Won YOON, Il-Jeong LEE, Choong-Youl IM, Young-Dae KIM, Jong-Mo YEO, Do-Hyun KWON, Cheol-Ho YU
  • Publication number: 20110186847
    Abstract: An organic light emitting diode display and a fabricating method of the same are disclosed. In one embodiment, the display includes i) a substrate having a thin film transistor region and a pixel region, ii) a semiconductor layer formed in the thin film transistor region, iii) a gate insulating layer formed on the substrate and the semiconductor layer and vi) a lower electrode formed on the gate insulating layer, wherein the lower electrode is formed in the pixel region. The display further includes i) a gate electrode formed on the gate insulating layer, wherein the gate electrode is formed substantially directly above the semiconductor layer, ii) an interlayer insulating layer formed on the gate insulating layer, the lower electrode and the gate electrode and iii) source and drain electrodes formed on the interlayer insulating layer and electrically connected with the semiconductor layer.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 4, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Yun Kim, Il-Jeong Lee, Do-Hyun Kwon, Jong-Mo Yeo
  • Publication number: 20110168985
    Abstract: An organic light emitting diode display device and a method of manufacturing the same are disclosed. The organic light emitting diode display device includes a substrate having an emission section and anon-emission section, a semiconductor layer located on the substrate, a gate dielectric layer located over an entire front surface of the substrate, a gate electrode located in correspondence to the semiconductor layer, a dielectric layer located over the entire front surface of the substrate, source and drain electrodes and a first electrode located on the dielectric layer and electrically connected to the semiconductor layer, a pixel definition layer exposing a part of the first electrode, a spacer located on the pixel definition layer and located on the non-emission section of the substrate, an organic film layer located on the first electrode, and a second electrode located over the entire front surface of the substrate.
    Type: Application
    Filed: December 29, 2010
    Publication date: July 14, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Do-Hyun Kwon, Choong-Youl Im, Dae-Hyun No, Jong-Mo Yeo, Ju-Won Yoon, Il-Jeong Lee, Song-Yi Jeon, Cheol-Ho Yu
  • Publication number: 20110163980
    Abstract: A method of manufacturing an organic light emitting diode display includes forming an organic layer on a support, forming a touch sensor on the organic layer, the touch sensor including a touch electrode pattern and a polarizing layer, separating the touch sensor from the support by removing the organic layer, and attaching the touch sensor to an organic light emitting diode display panel.
    Type: Application
    Filed: August 31, 2010
    Publication date: July 7, 2011
    Inventors: Do-Hyun Kwon, Il-Jeong Lee, Choong-Youl Im, Young-Dae Kim, Ju-Won Yoon, Jong-Mo Yeo, Cheol-Ho Yu
  • Publication number: 20110127499
    Abstract: An organic light emitting diode (OLED) display device and a method of fabricating the OLED display device, the OLED display device includes a substrate including an emission region and a non-emission region, a black matrix disposed in a region excluding a part of the emission region, a buffer layer disposed on the entire surface of the substrate, a semiconductor layer disposed on the buffer layer in the non-emission region, a gate electrode disposed on the semiconductor layer, a gate insulating layer insulating the semiconductor layer from the gate electrode and formed on the entire surface of the substrate, a first electrode formed on the gate insulating layer in the emission region, source and drain electrodes electrically connected with the semiconductor layer and the first electrode, an interlayer insulating layer insulating the source and drain electrodes from the gate electrode and opening a part of the first electrode, a pixel defining layer opening a part of the first electrode and disposed on the ent
    Type: Application
    Filed: September 1, 2010
    Publication date: June 2, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Ju-Won Yoon, Su-Mi Lee, Sung-Ho Kim, Il-Jeong Lee, Ji-Yong Noh, Hee-Seong Jeong
  • Publication number: 20110108845
    Abstract: In a display device, the display device includes a substrate, a red color filter layer, a green color filter layer, and a blue color filter layer. The substrate has red, green and blue sub-pixel regions. The red color filter layer is located on the red, green and blue sub-pixel regions, and has a first opening formed in the green sub-pixel region and a second opening formed in the blue sub-pixel region. The green color filter layer is located in the first opening. The blue color filter layer is located in the second opening. Since the red color filter layer is used as an interlayer insulating layer, there is no need to perform a separate process to form a color filter layer and a process for an interlayer insulating layer can be omitted. Thus, it can simplify a process.
    Type: Application
    Filed: February 25, 2010
    Publication date: May 12, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Do-Hyun KWON, Il-Jeong Lee, Choong-Youl Im, Young-Dae Kim, Jong-Mo Yeo, Ju-Won Yoon, Chool-Ho Yu
  • Publication number: 20110084257
    Abstract: An organic light emitting diode display includes a substrate, a first conductive layer disposed on the substrate, a second conductive layer formed on the first conductive layer, a third conductive layer formed on the first conductive layer or the second conductive layer. A first electrode disposed on the substrate at a display area, the first electrode including at least the first conductive layer, the second conductive layer, and the third conductive layer. An organic emissive layer is disposed on the first electrode. A second electrode is formed on the organic emissive layer. A pad is disposed on the substrate at a pad area neighboring the display area. The pad has the first conductive layer and the third conductive layer surrounding the lateral side of the first conductive layer.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 14, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Do-Hyun Kwon, Il-Jeong Lee, Choong-Youl Im, Ju-Won Yoon, Jong-Mo Yeo
  • Publication number: 20110084279
    Abstract: An organic light emitting diode display that includes a first electrode arranged on a substrate, an organic emission layer arranged on the first electrode and a second electrode arranged on the organic emission layer, the first electrode includes a first layer, a second layer and a third layer stacked sequentially on the organic emission layer, the second layer has a lower work function than the third. Here, the second layer has a higher work function than that of the third layer.
    Type: Application
    Filed: June 21, 2010
    Publication date: April 14, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Do-Hyun Kwon, Choong-Youl Im, Dae-Hyun No, Ju-Won Yoon, Jong-Mo Yeo, Song-Yi Jeon, Il-Jeong Lee, Cheol-Ho Yu, Young-Dae Kim, Jin-Gyu Kang, Gyoo-Chul Jo
  • Publication number: 20110050604
    Abstract: An organic light emitting display apparatus including a substrate, a first touch sensing electrode layer on the substrate, a first protective layer on the substrate, the first protective layer covering the first touch sensing electrode layer, a ground layer on the first protective layer, the ground layer being electrically grounded, an insulating layer on the ground layer, and an organic light emitting device on the insulating layer.
    Type: Application
    Filed: August 23, 2010
    Publication date: March 3, 2011
    Inventors: Do-Hyun Kwon, Choong-Youl Im, Il-Jeong Lee, Young-Dae Kim, Ju-Won Yoon, Jong-Mo Yeo, Cheol-Ho Yu